Hey guys I just got a letter from Ryuukishi himself! That's approximately what it says:
"Herro Shroedinger-san! Etto~ ano~ I have noticed people are not satisfied with my ending. There's a reason for that - Kuristoperu Noranu [sorry, I don't know what this katakana meant, anyone got any ideas?] stole my ending! But he's a rich baka gaijin so he'll definitely sue me for using it now! That's why I send it to you, you're a pig disgusting westerner too (and a goat), you're probably used to being in jail *laughs* so be free to draw it on za peipah. It's a real good end, kuso wa honto ni CASH"
So here it is, the ending. I feel I've seen it somewhere, may be related to that Noranu person, I guess.

P.S. I shouldn't have made this so big and accurate to the original, it gets progressively more QUALITY towards the last panels. I'm sorry.